Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: I have an adjustable twin size bed with select comfort air mattress. Will this support work for me?
Document: I have terrible feet and covers make my feet hurt. I've tried some inexpensive blanket supports which &#34;pooped&#34; out after a very short time. This blanket support is perfect! Height is adjustable. It fits my bed  even with extra bed mattress cover. Very satisfied! Well worth the money.
This blanket/bedding support is made of well finished material, thick walled pipe. Not flimsy in any respect.Adjustable height by simple push button apparatus is a distinct plus.The vendor for Amazon provided the service and quality product you expect from Amazon. I needed expedited shipping and the vendor responded superbly. Mail service, with the help of the vender, met my needs perfectly.My new mattress and bedding arrived the same day so I only had to make the bed once.This blanket support replaces one purchased earlier from a med supply house at a much greater price and very flimsy.This unit is a substantial improvement and has no sharp edges or pieces to damage expensive mattresses or bedding.I looked for a long time at many sources and designs.
I love this foot cradle! I had surgery on my foot and it was painful to have the blankets pressing down on my toes. We had tried a different support first, but it was not sturdy nor adjustable. It broke easily. This support is sturdy, easily assembled and adjusted! It's smooth where the sheets and blankets contact it, so there's no catching on the fabrics. At the smallest size, it's perfect for my size 9 feet. I would have given it a 5 star, but I would like it to adjust one more hole shorter.
I had foot surgery last week and need a blanket support for a while. This one is VERY sturdy. At the shortest length, it easily holds the blankets above my size 13 feet. Our mattress is only about 9" thick, but this unit extends about 12 more inches beyond where we have it set. I can't imagine a mattress too thick for this thing.
I just received this blanket lifter, put it together, slid it under my bed and Alas, even on the highest setting,it is too low. I would not get my feet under it. So now I adjusted it to the lowest setting * the buttons are difficult to work * and slid it under the mattress. Now it sticks up way too high. I will need someone to cut the tubing shorter for me.I will try it out tonight and hope it will stay put under the mattress and not slide out.
Because I have trouble sleeping with blanket pressure on my toes/feet at night, I initally ordered a 20" blanket support on Amazon (the "Essential Aluminum Blanket Support Bar"). However, with my mattress thickness (12"), the support bar was not quite high enough for me (I wear US 8 &  shoes). I needed the bar to be a couple of inches higher. For that reason, I ordered this blanket support that adjusts up to 31.5".This version works very well for my size mattress.
I liked the idea of a strong blanket support to keep the weight of blankets off of my sensitive feet. This item just flat out doesn't work! First, with the bottom wedged between the box springs and the mattress I tried to make it short enough to keep it off of my feet without lifting all of the blankets off of my feet, legs, and body. Seemed like it was at least 15- 16 inches higher than the top of the bottom sheet. Much too high! Then I tried to set on the floor to extend it to it's highest length and it ended too short at about 2 inchs above the bottom sheet.
The weight of our heavy winter comforter was actually making my feet/ankles sore by morning. This support keeps the comforter high above my feet and I sleep much better...and no sore feet/ankles in the morning!! Unfortunately, once this support is set, adjustment is very difficult, so I keep support on bed at all times. Looks funny, but is much easier than removing it each morning and putting everything back each night. So...if you can get used to the look of a &#34;tent&#34; at the end of your bed at all times, this support could work for you.
[[ASIN:B0055FR4DQ Adjustable Blanket Support in White]I needed something to keep the sheets/blankets from touching my feet and lower legs at night and still be warm. This did the job. It adjusts in height to fit my box spring & mattress and it doesn't disturb my partner.
I was having trouble with my blankets irritating an ankle injury and making it difficult to sleep. If you have a deep mattress, this product will get tall enough to be of use to you. I have a Tempurpedic bed and even on the smallest setting, it was too tall for this mattress. So, I extended it to its full length and put it on the floor, on a 2x4 board,  under my bed to raise it a tad. That makes it about the right height and the framework to keep the mattress from sliding off the adjustable bed holds it in place.
Answer: I have a Tempurpedic adjustable bed.  What I had to do was extend it as long as possible and then prop it up on a 2x4 on the floor.  I hooked it through the metal piece at the bottom of the bed that holds the mattress on.  Putting it on the 2x4 made it high enough to hold the blanket off my feet.  The other possible sizes were either too short because of the thickness of the mattress or too tall.  I don't use it anymore, but it sure was helpful at the time of my sprained ankle.