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- USA
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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Description
iSeries NXG - 13.5" Hybrid Medium Mattress 3500Weve evolved the Serta iSeries NXG to be the next generation of comfort. Weve built this Medium feel mattress with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief and ideal support for a deeper , more restful sleep at a price that makes sense. Featuring high density memory foam, NXG Memory Foam delivers deep, contouring pressure relief. A cool to the touch fabric oers instant cooling, while Carbon
We’ve evolved the Serta® iSeries NXG™ to be the next generation of comfort. We’ve built this Medium feel mattress with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief and ideal support for a deeper , more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG™ Memory Foam delivers deep, contouring pressure relief. A cool-to-the-touch fabric offers instant cooling, while Carbon Fiber Memory Foam draws heat away from the body for all-night comfort. The hybrid models feature a 5-zone coil system with alternating firm and plush areas to better support the curves of your back and body.iSeries NXG - 13.5" Hybrid Medium Mattress 3500 - Twin Long
39.0"W x 79.5"D x 13.5"H - 102.52 lb
iSeries NXG - 13.5" Hybrid Medium Mattress 3500 - Full
54.0"W x 74.5"D x 13.5"H - 130.22 lb
iSeries NXG - 13.5" Hybrid Medium Mattress 3500 - Queen
60.0"W x 79.5"D x 13.5"H - 153.45 lb
iSeries NXG - 13.5" Hybrid Medium Mattress 3500 - Split Head Queen
60.0"W x 79.5"D x 13.5"H - 156.82 lb
iSeries NXG - 13.5" Hybrid Medium Mattress 3500 - King
76.0"W x 79.5"D x 13.5"H - 190.84 lb
iSeries NXG - 13.5" Hybrid Medium Mattress 3500 - Split Head King
76.0"W x 79.5"D x 13.5"H - 189.32 lb
iSeries NXG - 13.5" Hybrid Medium Mattress 3500 - California King
72.0"W x 83.5"D x 13.5"H - 190.4 lb
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1651 reviews
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Product Reviews
★★★★★ 5
Winner of the aggressive chew competition
Color: No Stuffing Blue Eel
I bought several toys for an insane Jack Russell and this is the unlikely winner. It is a softer toy, but it is stitched together nicely and there are various components that distract the dog and keep him busy. First, it can be rolled up and stuck with small but strong Velcro patches, so it’s not just a sitting duck, the dog has to figure out how to unroll it which is fun. Next there are five little pockets on one side that you can put treats inside, which draw attention to the toy and give him another task. He did partially rip some of the flaps on the pockets in his zeal to get the treats. Then there is the squeaker, which he dispatched of in like 4 seconds (somehow without ripping the fabric(?)), then there are all sorts of crinkles and textures on both sides. All of this and the good stitching make it a toy he wants to play with but that he doesn’t annihilate in one day. The hard plastic toys are also good but I feel like I need to watch him carefully for fear that a sharp chunk will come off. The medium chew toys are cool but he’s just not into them. So this wins!
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Reviewed in the United States on July 12, 2025
★★★★★ 5
My dogs favorite toy!
Color: Blue & Yellow Eel Bundle
This is my Jack Chi and Yorkies favorite toys (it helps when they get 5 mini milk bones). It is a tough toy, but not impervious to a Jack Chi determination to remove all squeekiees! Squeekie or not, it's still their favorite toy for tug-a-war.
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Reviewed in the United States on April 7, 2026
★★★★★ 4
Fun Toy
Color: No Stuffing Blue Eel, Color: No Stuffing Blue Eel
My dog loves this toy. It has 2 squeaky & also has crinkly sound along with the slots for treats. However it is not very durable. The treat slots were pretty much destroyed with the first use. I'm still giving it a 4 star because it is so fun & entertaining for my GSD.
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Reviewed in the United States on November 30, 2024
★★★★★ 3
Kept puppy interested!... Till she chewed it apart in 5 minutes
Color: No Stuffing Blue Eel, Color: No Stuffing Blue Eel
I'll start off by saying this is a really unique toy. You really can hide treats in the pocket and the velcro is strong enough to roll it up that it won't come undone easily. The different textures and sounds interest my puppy! And she LOVES it!
But it didn't last long with her. She LOVES rope toys and ripping them apart and eating it. I literally had just given it to her and not even a minute later (not joking), she had torn off a row of the rope-like part. 5 minutes later, the tail is already in shambles lol
So long story short, great and interesting toy to keep the doggy from being bored. Maybe not so great for aggressive chewers/rippers in the long term. More than likely will be torn to shreds by the end of the day.
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Reviewed in the United States on September 26, 2025
★★★★★ 5
Great quality, fun design.
Color: No Stuffing Blue Eel
Wonderfully durable.. We have a 3 y/o australian kelpey and a 2 y/o pitty.. both are incredibly playful and tear up toys like nobody's business. A lot of the time under a day.. We're on day three with this eel, they love it and its holding firm (no tears or missing pieces). Squeakers are their favorite and these ones are perfect ( prominent but not too loud)
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Reviewed in the United States on March 23, 2026