Cosima Nap Dress

Hill House Home

4.5
(52 Reviews)

Product Details

The Hill House Home Cosima Nap Dress blends romance and ease with its flowy silhouette and delicate details. Pair it with sandals for a relaxed feel or dress it up with heels and statement earrings.

Materials and Measurements

Green (Shell: 64% Rayon, 23% Lyocell, 13% Nylon; Lining: 100% Cotton). Casual Dress. Boat Neck. Sleeveless. Pull on. Shoulder to Hemline Length: 52". Imported.

Size and Fit

Sized: XXS-XXL

The model is wearing a size small.

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Ratings &
Reviews

  (52)  

Includes written reviews and customer fit feedback.

Fit
Runs Small
True to Size
Runs Large

All Photos

Top Contributor
Size worn:
L
Overall fit:
Large
Usually wears: 12
Height: 5' 2"
Body type: Hourglass
Weight: 183lbs
Browse Nicole's reviews
June 2nd, 2025
Gorgeous and comfy

Wore this while pregnant on a trip to Florida and it was fabulous. Returning to get a Medium because it is a bit big around the arms. Considering buying it!

Overall Fit

Runs big

Chest

Runs big

Arms & Shoulders

Runs big

Waist

Runs big

Hips

Runs big

Length

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Body type: Pear
Browse Kristen's reviews
May 3rd, 2025
Should have bought

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 9"
Bust size: 34B
Body type: Hourglass
Weight: 135lbs
Browse Sara kathryn's reviews
April 29th, 2025
Comfy and Chic

Who doesn't love a nap dress?

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 2
Height: 5' 10"
Bust size: 32DDD/E
Body type: Hourglass
Weight: 125lbs
Browse Kelly's reviews
July 8th, 2025
Perfect second trimester dress

Normally, I order XS in Hill House dresses, but sized up to small since I’m 5 months pregnant. The dress was so comfortable and breathable.

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Usually wears: 2
Height: 5' 2"
Bust size: 34C
Body type: Petite
Weight: 135lbs
Browse Michelle's reviews
May 13th, 2025
Love the color

The dress was too long for me but still wore it to a couple of events. I liked being able to try this brand though. Just not for petite gals!

Overall Fit

Just right

Chest

Runs small

Arms & Shoulders

Just right

Waist

Just right

Length

Too Long

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 4"
Bust size: 34C
Body type: Pear
Weight: 127lbs
Browse Alexis's reviews
April 19th, 2025
Not What I Hoped

I had stalked the Cosima dress style on Hill House Home’s website for a bit, so I was glad when it became available to rent on RTR. I am typically a XS in HHH dresses, which is what I rented. It fit fine, but it wasn’t my favorite cut. It flares out at the hip area and, for me, accentuated my hips in an unflattering way. My husband called it “Little House on the Prairie chic,” which is kind of my aesthetic, but it just didn’t work here. And tbh, it was overall just a bit boring. Glad I rented it, but I won’t be revisiting this HHH style.

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 10
Height: 5' 7"
Body type: Pear
Browse Andrea's reviews
July 9th, 2025
Great maternity option

I love this dress so much. It's simple but I can see why everyone loves this brand. Sized up one size for a maternity option. Easily can be dressed down or up. It's so comfortable. I'll be renting the other styles and colors often for my last two months of pregnancy.

Overall Fit

Just right

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Usually wears: 2
Height: 5' 9"
Bust size: 34A
Body type: Straight & narrow
Weight: 135lbs
Browse Caroline's reviews
June 16th, 2025
Cute and comfy

I rented this to take on vacation and it's the perfect grab and go dress, it feels comfy and can make you look put together with minimal effort. Easy to wear with or without a bra. Almost wanted to buy it because I was wearing it so often! I'm typically a S for hill house and went for an XS since it was available. The arm holes were a little small but otherwise all good since the top is stretchy.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 8
Height: 5' 10"
Bust size: 34A
Weight: 175lbs
Browse Joan's reviews
June 15th, 2025
Cute and comfortable

Wore during pregnancy. Casual and comfortable. Flattering and didn't feel too large wearing it.

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 14
Height: 5' 11"
Bust size: 36A
Body type: Hourglass
Weight: 200lbs
Browse Emily's reviews
May 20th, 2025
Flattering!

The fabric texture adds the perfect touch the elevate the monochromatic look. The fabric also has a lightweight flow.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
XXS
Overall fit:
True to Size
Usually wears: 0
Height: 5' 2"
Bust size: 32A
Body type: Petite
Weight: 116lbs
Browse Joni's reviews
May 10th, 2025
Simple casual dress

I'm in love with Hill House Home nap dresses. I rented the blue one and now this and would wear both again.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 4"
Bust size: 36C
Body type: Hourglass
Weight: 165lbs
Browse Sarah's reviews
May 7th, 2025
Perfect prairie dress

Fit TTS and was easy to wear. Comfy!

Overall Fit

Just right

Top Contributor
Size worn:
XXS
Overall fit:
True to Size
Usually wears: 0
Height: 5' 4"
Body type: Athletic
Browse Emily's reviews
April 21st, 2025
Basic dress

Silhouette is very forgiving and comfortable. Brand new -- I cut the tags.

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 8
Height: 5' 7"
Bust size: 34D
Body type: Hourglass
Weight: 157lbs
Browse Kristin's reviews
April 19th, 2025
So comfy, great color for spring

Loved this easy dress. Had pockets and very comfortable and flattering at the waist.

Overall Fit

Just right

Size worn:
L
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 10
Height: 5' 2"
Bust size: 36D
Body type: Full Bust
Weight: 175lbs
Browse Melanie muñoz-durrant's reviews
July 12th, 2025
Great Dress & Bump friendly!

This was highly complimented! Such a cute dress and the stretch was so great while 6 months pregnant.

Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 2"
Body type: Hourglass
Weight: 140lbs
Browse Megan's reviews
July 8th, 2025
great fit

very comfortable and easy flowy summer dress.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 8
Height: 5' 5"
Body type: Hourglass
Weight: 155lbs
Browse Carly's reviews
July 2nd, 2025
Love love love

So comfy so flattering such a good color

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 12
Height: 5' 0"
Bust size: 34DDD/E
Body type: Hourglass
Weight: 160lbs
Browse Catherine's reviews
June 19th, 2025
Lovely color, airy fabric with forgiving fit

The ruching of the chest makes for a very forgiving fit, though the arm holes are maybe a touch too big (had to rearrange so my bra didn’t show). Fabric is lovely and length is perfect even for 5’!

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Date
Usually wears: 4
Height: 5' 6"
Bust size: 34B
Body type: Athletic
Weight: 135lbs
Browse Amanda antico's reviews
June 16th, 2025
Great for date or errands

Sooo comfy and cute! I rented since I’ve been wanting to buy in a different pattern. Will definitely be purchasing!

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 12
Height: 5' 5"
Body type: Full Bust
Browse Alex's reviews
June 12th, 2025
Great everyday dress- wore with Jean jacket to work

Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 2"
Bust size: 28DDD/E
Body type: Hourglass
Weight: 155lbs
Browse Josie's reviews
May 27th, 2025
Perfect for pregnancy

Typically between a small and a medium, and went with a medium on this, but definitely could’ve taken a small

Top Contributor
Size worn:
M
Overall fit:
Large
Rented for:
Everyday
Usually wears: 8
Height: 5' 3"
Bust size: 36D
Body type: Petite
Weight: 138lbs
Browse Ginny's reviews
May 3rd, 2025
Loved it

Maybe could’ve gone with a small since the neck area seemed a bit loose but I made the medium work. Wore to work with a cute eyelet denim jacket.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 6"
Bust size: 34DD
Body type: Hourglass
Weight: 140lbs
Browse Clara's reviews
April 25th, 2025
A great dress you can dress up or down

Gorgeous color and very soft. It is lined so a bit warm but not see-through. A great dress to pack on vacation as you can easily dress it up or down.

Top Contributor
Size worn:
S
Rented for:
Everyday
Usually wears: 6
Height: 5' 7"
Bust size: 32C
Body type: Athletic
Weight: 145lbs
Browse Allegra's reviews
April 24th, 2025
Great Dress!

LOVE this dress! I went with a small and it fit perfectly. Also it has pockets, which we love!

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 3"
Body type: Athletic
Browse Mikahla's reviews
April 10th, 2025
Comfy and cute!

This dress is so cute! It's a great minty color, and it's so comfy and easy to throw on. The size small is slightly large in the arms and it's pretty stretchy, so I probably could've sized down to an XS. But it's not that noticeable so the S was great too.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 5"
Bust size: 32C
Body type: Petite
Weight: 130lbs
Browse Robyn's reviews
July 9th, 2025
Bump friendly and comfy

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 8
Height: 5' 9"
Bust size: 36C
Body type: Athletic
Weight: 160lbs
Browse Charlotte's reviews
May 22nd, 2025
The perfect comfy dress

Overall Fit

Just right

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Usually wears: 2
Height: 5' 1"
Bust size: 34D
Body type: Petite
Weight: 115lbs
Browse Jaime's reviews
May 16th, 2025
Loved it. Fit perfect

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 7"
Bust size: 34C
Body type: Pear
Weight: 158lbs
Browse Sylvia's reviews
May 2nd, 2025
Loved the fabric!

Soft, breezy & versatile!

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 10
Height: 5' 10"
Bust size: 34DDD/E
Body type: Hourglass
Weight: 185lbs
Browse Helen's reviews
April 17th, 2025
Cute basic dress

Overall Fit

Just right

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 0
Height: 5' 3"
Bust size: 32B
Body type: Petite
Weight: 105lbs
Browse Tamara's reviews
July 10th, 2025
Great dress!

I wore it when it’s really hot so I wish it wasn’t double lined but still a gorgeous dress!

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 12
Height: 5' 7"
Bust size: 36A
Body type: Hourglass
Weight: 168lbs
Browse Verity 's reviews
June 26th, 2025
Loveee

Get it and love it forever

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Work
Usually wears: 2
Height: 5' 7"
Bust size: 32B
Body type: Straight & Narrow
Weight: 122lbs
Browse Khaliha's reviews
June 13th, 2025
Great throw on dress

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 14
Height: 5' 7"
Bust size: 38D
Body type: Full Bust
Weight: 200lbs
Browse Courtney's reviews
April 28th, 2025
Easy!

No notes.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 3"
Bust size: 36B
Body type: Athletic
Weight: 130lbs
Browse Yei's reviews
April 27th, 2025
Comfy

Top Contributor
Size worn:
S
Overall fit:
Large
Usually wears: 6
Height: 5' 6"
Bust size: 34C
Body type: Pear
Weight: 135lbs
Browse Nikki's reviews
April 27th, 2025
Love the neckline

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 12
Height: 5' 6"
Bust size: 36D
Body type: Hourglass
Weight: 188lbs
Browse Lindsey's reviews
April 25th, 2025
Chic nightgown

Reminded me of a nightgown but I got so many compliments.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 6
Height: 5' 5"
Bust size: 34B
Body type: Athletic
Weight: -1lbs
Browse Haley 's reviews
April 22nd, 2025
Would buy

Loved

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 12
Height: 5' 2"
Body type: Petite
Weight: 160lbs
Browse Meg's reviews
May 8th, 2025
Great everyday dress!

I wore this dress to work and received many compliments. This dress is comfortable and allows for easy mobility. While the dress is very flattering it accentuates a larger chest. Overall, I would rent this dress again.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 3"
Bust size: 34C
Body type: Petite
Weight: 128lbs
Browse S's reviews
April 23rd, 2025
basic and easy to wear. Not overly flattering.

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