Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: what depth does the fitted bottom  sheet have to be?
Document: The bed is firm enough and stays inflated, but it needs a covering besides a sheet to lay on, otherwise it is uncomfortably cold to the touch. Putting a blanket down first, under the fitted sheet really makes a difference.
We used this during cold winter spells in our basement. The only drawbacks:  1) need to pump it up/ top it off prior to use every night  2) had to put a blanket between the air bed and bottom sheet as the air in the bed was ambient temperature and never really warmed up to body temperature. Without some additonal insulation we were perpetually cold. I suppose that this would be an advantage in warmer weather where an 80 degree air mattress would help cool a 98 degree body.
The mattress seems to be of good quality and came packed with a nice carrying case. Also the pump inflated the mattress quickly and also nice that it takes the air out quickly and completely.I did return the mattress because the dimensions are about 5&#34; short measured both ways or 55&#34; x 75&#34;. A queen should be 60&#34;: x 80&#34; so the fitted queen sheet doesn't fit right on this bed.
there is already two holes on the bottom and i never even moved it. thank you for your time. swapna
just a giant hole formed on the bottom. never moved it. it just happened one night. way too expensive to just pop.
Very handy, very comfortable, high quality.Inflates and deflates very well.Grippy bottom makes it stay in place.Highly recommended for a guest bed in a pinch.
In colder climates sleeping with just a sheet between your guest and the air mattress can be a bit cold. The addition of a blanket underneath or a topper will provide sufficient warmth for a great night sleep.
I don't know why but this mattress is not as long or wide as a std queen -- so fitted sheets don't fit. And the added height of the built in &#34;box springs&#34; mean there is no place to tuck in sheets or blankets. All in all, this mattress was a total bust.
I loved not having to pump up this bed manually. The imbedded pump worked just fine. I used this bed for two weeks straight and never had to refill the air bed. It easily supported 400 pounds when it was being used as a couch as well. The quality of the bed lining on the top was very comfortable...all I needed was a sheet.
You'll get an excellent nights rest on this easy to use airbed. The extra height means it's the same height off the ground as  some modern low beds. I'd definitely recommend it. I use a high quality mattress cover under the sheet. This gives it the feel of a regular bed. If you don't like a firm feel to you bed,it may feel a bit like a water bed. It's a good quality item.
Answer: yes