How thick of mattress fits before not having any siderail support left?
1299233
We have a standard mattress on there (no box spring) so my son has probably at least 6 inches of the guard rail above the mattress which seems to be enough. My guess is if you also had the box spring there wouldn't really be any guard rail above that.
1299234
I just used a regular twin size mattress from the twin bed we already had, and it works great - no issues.
128141
It won't be a problem. Your mattress will hang over the frame on all sides by an inch, but that won't affect your ability to get a good night's sleep.
203135
I have not spent the night on this, but I have laid on it. It is very thick, with a padded top. In my experience with inferior air mattresses, side-sleeping makes contact with the floor through the mattress. That cannot happen with this one. It's about 2 feet thick.
2158385
about 24 inches, depend how thick of your bottom mattress, you have to but the bottom mattress!
1626916
The thicker side is the base foam side and should be down. There is printing on one of the edges that guides you as well. I didn't see it until about 2 weeks after I set the mattress up. Hope that helps.
554400
It depends on what thickness of mattress you have (8 inch, 10 inch, 12 inch etc.) Ours is 12 inches thick and its around 3 1/2 feet high.
1522238
After the recommended time for it to get to full thickness, it fits just barely inside of the edge of our mattress on the sides, otherwise plenty long. If you're measuring it in its compressed form, you won't get an accurate measurement.
774108
The side rails are 12 1/2" from the base. Add an 8" mattress, and you've only got 4 1/2" rails. The area where the ladder is attached has no guard rail. I guess a lot depends on how old your child is. You could get a thinner mattress too, I suppose. They do make futons that are 6". Hope this helps!
185945
You have about 14" from the top of the slats the mattress will lie on to the top of the rails. We use an 8" mattress with no fear of rolling out.
1658102
Our mattress is fairly thick and it fits fine with extra room tucked under. Have not measured our mattress but it fits and works great.
674162
We have a pillow top mattress & it fits a little loose. The mattress we have is almost 11"'s thick. I hope that helps. We got two, one for the mattress & one for the box spring. That seems to have helped a lot. Once we got the frame rails cleaned up. We also bought the sticky traps if any are hiding in the carpet.
2205190
My mattress is 12", and there is extra material at the corners and sides of the bottom sheet. Both sheets are generously sized.
85120
I have a very deep mattress, deeper than most I think, and it comes pretty close. I'll bet you'd be fine.
1298095
It is a total of 4" (2" of memory foam and 2" of other foam underneath). This could be a problem if you are calculating depth for sheet sets; you need to add 4" to your current mattress.
213078
My mattress is plush, thick and 18". This cover has room to spare on it. Hope this helps.
2160495
I did not see a warning label about the thickness of the mattress. I did buy also a 3 inch thick mattress. In the highest position the bed can go in, the warning may be because there is less room before a very active baby could go over the rail. This is just a guess on my part. I am planning on lowering the position of the mattress as soon as my grandson becomes an active roller.
185941
The measurement from the slats to the top of the rail is 15". A mattress less than 8" thick is recommended for safety.