This fit an heirloom bassinet perfectly. The plastic is not super thick so I'm not sure how long it will hold up, but a big improvement over the 30 year old cracked one that came with it.

I have an antique bassinet I used as a child with unusual mattress measurements (33.5" x 15.0"). I searched high and low on Amazon and online to find a replacement mattress to fit this Bassinet that was waterproof and one that someone didn't complain about comfort issues or chemical warnings on the tags. I was hoping to find something thicker, like a crib mattress, but after searching for hours it seems they just don't exist with those dimensions at a thickness more than 2". Yes you can order a custom sized mattress, but they are pretty expensive, and for the quality and price of this mattress ($25!), you can't beat it. I was nervous because there weren't as many reviews or pictures but I am so happy I purchased this one. It fits my bassinet EXACTLY perfectly and appears to be a high quality at first inspection. I have yet to use it with my to-be-expected baby, but I am very pleased with this purchase so far. I will update the review on comfort and durability/last when possible.

Also, if you get this mattress I found some lovely sheets that fit it really well and have really good reviews. It's very soft and I will be buying more of these hypoallergenic sheets: https://www.amazon.com/TotAha-Stretchy-Hypoallergenic-All-Season-Jersey-Knit/dp/B0B257WX6T/ref=mp_s_a_1_1?crid=OQBFV9XRGE6X&keywords=TotAha%2BPremium%2Bstretchy%2Bhypoallergenic%2Bcradle%2Bbassinet%2Bsheets%2B(2-Pack)%2B32%2Bx%2B16%2Bx%2B3&qid=1671582923&sprefix=totaha%2Bpremium%2Bstretchy%2Bhypoallergenic%2Bcradle%2Bbassinet%2Bsheets%2B2-pack%2B32%2Bx%2B16%2Bx%2B3%2Caps%2C163&sr=8-1&th=1&psc=1

Pick this mattress if you're thinking about it!

Purchased this mattress to replace the flimsy one included in a bassinet I bought. Found this product substantially better than mattresses included in most bassinets. Purchased this hoping it would fit my bassinet and even though it states it is a CRADLE mattress, the dimensions were the same, so I took a chance. It DID NOT FIT because the corners were squared NOT ROUNDED OR OVAL SHAPED like a bassinet....was disappointed because of wrong fit only.

My daughter wanted to use a cradle that had been in our family for years. The original mattress was pretty disgusting, so I was very excited to find this one, which fit the cradle. It's a nice quality...a little thicker than some. I paired it with a bassinet sheet I also found on Amazon for the perfect restoration.

the cradle mattress was everything I wanted. I restored a 100 years old cradle and did not know if I could get a mattress to fit. the baby doll fit perfectly. and was thick enough that I think the baby will be very comfortable. the service from amazon was everything they promised.