Are these firm enough to put UNDER the mattress at the head of the bed to elevate a person's head with sinus issues?
309874
No, not for using like that. They would compress too much to be useful for that I think. They work ok as bed rails but they're not so firm as the actually elevate the mattress significantly.
309875
I do not think they would work under the mattress, due to the weight of the mattress. But I'm sure it would at the head of the bed underneath the sheet.
886459
Firm at most. They are comfortable. I definitely wouldn't describe them as very firm.
166779
I am not a big fan of firm pillows. This pillow is supportive while allowing your head to sink in and feel cradled. I gave this pillow to a friend that purchased a firm foam pillow and she loved it. I still enjoy the pillow.
604488
They're okay... There is a gap between the head piece & the bottom. You kind of fall in between. I'd suggest getting a cushion for them. Other than that, they are very nice
304374
I never thought of that, but what a neat idea! They would definitely be strong enough. As you can see from the picture, the wedge comprises only about 2/3 of the lifter; the other 1/3 is the handle. The handles may not fit under the mattress with the same stability as the wedge, which is flat. So if you have a headboard, you may have to move the mattress down to allow room for the handles to stick out. But if you can get them under the mattress, all the better. I say go for it, and let us know how it worked. Good luck!
2041049
Yes, they can. I have two sets. They're really nice and especially for that price.I just read the other answer. They can be pushed under enough for me.
1567733
Absolutely! We have it set that way. Also, you would have less space for person sleeping sit up without hitting their head if there were a box spring
1545423
Definitely not. They are designed to keep you seated upright, not for lounging. It
1702850
No I would not because the mattress is too soft.. It causes mine as well as my husband back to hurt. .If you are having back problems you should consider purchasing a firmer mattress. .
197670
Yes I think so. I think they are a great aid in keeping people from rolling off the bed.
237026
no...it will not firm up the mattress....you might put a piece of plywood between the mattress and box springs for that and if that is to firm then this memory foam will soften it and that might work for you
113143
I suppose anything is possible. My base was med/firm before adding my topper. It helped but not enough. As a side sleeper I'm now convinced anything on your mattress that is "firm" shouldn't be.
567878
I don't know if that would really help much...I guess it could add a little cushion. They are definitely firm enough. I just wonder if they would move around and separate?
844413
Probably. It is pretty firm. However, it did not prevent the snoring as claimed for my husband. And he landed up sleeping way down in the bed, due to the slope. Hope this helps.
2096534
They are the right size, but not the right firmness. With the weight of a fridge, they would almost definitely squish to the point of providing very little vibration reduction. I use mine on the bottom of a laptop to elomijate the vibrations that damage hard drives.
2032677
I just got mine today and am using them for that very reason. They fit great between my mattress and headboard. I can fit them different ways depending if I want a flat surface or a slight wedge. They fit in a regular pillow case and I just wrapped the excess material around or you can let it hang behind, no one will see.
1771347
I have not used these with the mattress at the highest level. However, they are very compressible, so I would imagine that they would work fine.