So it blows up nicely, but if you leave it turned on so it pumps back up during the night, it makes a loud humming sound. Also, the inflation sounds like a vacuum cleaner (loud), so if the pump turned back on to re-inflate during the night, it would wake up all but the most deaf or comatose of sleepers. This mattress costs quite a bit more than the version without the "NeverFlat" feature--if the return shipping weren't so expensive, I would exchange this for a mattress without "NeverFlat" and save the money, because that feature is basically un-usable.

I bought this bed when moving into a new apartment just to have something to sleep on while I got sett;ed & could look for a new bed. Guess what? I loved this bed so much it's my permanent bed. I moved into a senior apartment & it was small to say the least, though just perfect for me. The bed is as high as a regular bed, which is great for my bad knees. PLUS, you can move it around! How great is that!?! And you don't have to vacuum under it, which I love! This was such a good buy--I love the internal pump. And if I need some extra room to do something, the bed deflates & disappears. It also inflates in just a couple of minutes, so make sure you have room for it & stand back because it's going to be inflated in just a couple of minutes. LOVE THIS BED!!!!

I LOVE my Serta Raised Twin-size Airbed with NeverFlat AC Pump. Delivery was prompt and very pleased to see it arrived packed in its own storage bag. It pumps to full size easily with a twist of a dial and takes only a few minutes. If it pumps extra air during the night, I never feel or hear it as the inner pump is very quiet. Thank you, Great Offer Stock for your excellent product and service. RainbowSkye33

I've been using this as my nightly mattress for three weeks now. Very comfortable. No sagging by the end of the night as with other air mattresses I've used. If the pump has come on to top it off while I've been on it, I haven't heard it. It's also great to be at regular bed height rather than sleeping on the floor. I'm very happy with the mattress so far.

Love how quickly this inflates and deflates with the built-in pump! We have this in our bedroom so our 5YO boy can use it. Even though he has his own bedroom and bed, he often wakes up in the middle of the night and wants Mommy to be near him. Now he can crawl in this bed and leave Mommy in hers. I set the ring to "Firm" and let the pump inflate the bed 'til it turned itself off. I can hear a little bit of a hum if I sit near the foot of the bed but it's not overly loud or obnoxious, and I've never heard the pump kick back on to maintain the pressure. I guess the only recommendation I would make is to use the end with the pump as the foot of the bed in case the hum might bother you. In any case, I think this is a wonderful purchase and well worth the money!

I bought this air mattress for hen my other grandkids come over and they love it. We put it in the room with their parents and they fall straight to sleep. The best part is the auto pump that keeps inflating it when they are sleep. I highly recommend this air mattress!!!!!!!

Great extra bed for our granddaughter who visits often. The velour top is soft and keeps a fitted sheet from slipping off. She likes the extra inches off the floor. We are happy with the pump which keeps the bed filled with air through the night so she doesn’t end up sleeping on a flattened mattress by morning. All in all, Serta has made a good air bed for a great price.

i bought 2 of these off of the great reviews. have grandkids who spend the night and family that comes into town. i love the built in air pump. i have gone out of town to family and hunting down the air pump turns into a treasure hunt. the bag that comes with it is of great quality. air mattresses can get pricey and thanks to Great Offer Stock, they offer a reasonable price for a quality air mattress. very comfy also!

I bought this mattress a few weeks before I was expecting relatives. I set it up 10 days prior as instructed and never sat on it, knowing it would be uncomfortable. I dreaded going to bed. What a surprise, and I mean a BIG surprise. This might be the most comfortable little bed I've slept in except my own bed. I didn't even think I could sleep in a single bed with 2 small dogs, but indeed I can. I didn't think the fitted twin bedsheet would stay in place ... it does. Next time relatives visit I may try to find a double air mattress bed by Serta so that they can stay in the guest room and I won't need to give up my bed. At least I know for sure IF they were to complain about the comfort of the bed, they would be the oddball. (Oh, I'm almost 64 and too heavy ... 10 nights on this ... no problem!)

Amazing! If you are looking for the perfect air mattress-this is it. self inflating, super comfortable-so much so that we bought our parents two to have for family visits. Bed inflates to the height that makes getting in and out of bed easy. choose your inflation firmness..or softness and sleep well!!

Wow have inflatable beds improved over the years! Purchased as a spare bed for extra guests. Very easy to inflate and deflate-just plug in and turn knob. It is very thick and stays inflated all night. Does not slip on floor. Has a bag for storage. Purchased xtra long twin bed which fits perfect. Definitely would recommend!

This is perfect for me and my 76 lb Labradoodle to sleep on. Very sturdy, has an internal air pump. It even self-inflates to maintain the level of firmness you have chosen.

I bought this bed so I could sleep on it when I visited my sister for ten days. I bought it also because it was raised, and I wouldn’t have problems getting in and out of the bed. It is very comfortable and doesn’t lose air. (It automatically adjust the air firmness to your desired level of firmness.). I would definitely buy this mattress. A great purchase!

We bought this air bed to use when our grand children visit for extra bed space. We have two queen size beds, but needed an extra bed with 3 grand children so we bought the twin size . It was just too crowded with 3 in one bed. It's great!!! It blows up quickly, and air stays in all night. One of my grand children sleeps on it and, she says she sleeps good on it in fact she volunteered to sleep on it each night. I was surprised how quickly it deflates when we were ready to store it, and how nicely it fits in the big duffle bag it comes with. So far we are very happy with this product. Wish I had bought it sooner!!!!

I purchased two of these and wish I had gotten three. (I got a more traditional close to the floor one for my son which I wish I had not done.) This raised airbed is awesome! It is noisy when putting up and down but I have never heard it if it has needed air while sleeping and we slept on them over a month. I have a rollaway bed that I will be getting rid of since these more than cover my need for an extra bed. Also, my regular twin bedding worked very well.

This air mattress is great! It never loses air and when it automatically fills the mattress with air, it is super quiet! When I deflated it, I just turned the knob to deflate and walked away. Awesome! My only issue is the firmness of the mattress. Even on the plushest setting, the bed is still too hard for me. But, no worries, that's what pillow tops are made for. I bought one and viola! Perfect bed!!

The airbed is fabulous for its automatic inflation. It is so easy to both fill & deflate by just turning a switch. Within moments I have a guest bed ready & the reports I have received is, that the comfort is the best. On the negative side, I used a mattress cover under the sheets but found that moisture formed under the mattress cover causing a discoloration to the airbed. I now use a waterproof pad over the mattress to prevent that from happening. Problem solved!

This bed is very comfortable for visiting nieces and nephews. The Never-Flat pump means it stays pumped up. As with all air beds, it helps to put a thick mattress pad or comforter under the bottom sheet, so you don't feel the "tufted" mattress surface.

This mattress inflates in minutes on its own. I have already recommended it to a friend.

We bought this twin size airbed for our daughter to use in our travel trailer. It was quite comfortable and very easy to inflate/deflate and make up with regular sheets. I recommend a nice quilted mattress pad for extra comfort.