RTG Sleep 3900 King Adjustable Base - Image 1
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Rtg Sleep 3900 King Adjustable Base

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SKU: 51008893

Perfect for watching tv or reading, the head and foot of the base move up and down to help you find your desired position. The mobile app and wireless remote allows you to conveniently adjust your base from the comfort of your bed. Programmable with a custom memory preset, the remote includes anti-snore and zero gravity positions. The dual massage with wave technology enhances comfort and provides instant relaxation at any time of day. A flashlight and under bed lighting help you navigate through the dark without waking your partner. The foldable, low profile foundation with height-adjustable legs and a zero clearance design makes it compatible with most platform and slat beds.

Features

Adjustable

Collection

Rtg-sleep 3900

Warranty

20 year limited warranty -

View Warranty

Q&A answers generated with AI assistance.

Will this adjustable base fit inside my current bed frame?

This base is designed with a "zero clearance" low-profile foundation and height-adjustable legs, making it exceptionally versatile. It is engineered to be compatible with most decorative bed frames, including platform beds and those with slat systems. Because it can function without legs directly on a flat surface, it is a perfect solution for modern, low-profile bed designs.


Can this adjustable base help with snoring?

Yes, the included wireless remote features a dedicated anti-snore preset. This position gently elevates the head to help open airways and improve breathing. By using this ergonomic adjustment rather than just stacking pillows, you can achieve a more supportive angle that reduces the likelihood of snoring without putting undue strain on your neck.


Is this king base easy to transport if I live in an apartment or plan to move?

Despite its sturdy construction and dual motors, this base features a foldable design. This makes it much easier to navigate through tight hallways, around corners, and into elevators, which is a significant advantage for urban apartment living or frequent relocators. Once in the room, it unfolds quickly for a straightforward setup.


Is this a single-piece king adjustable base, and why would I choose it over a split king?

Yes, this is a standard, single-piece king adjustable base. Choosing a single base is ideal for couples who prefer a seamless sleeping surface without the "cuddle gap" often found in split king setups. This configuration allows you to use standard king-sized sheets and ensures that the entire mattress moves in unison, providing a consistent feel across the bed.


How does the zero gravity position benefit someone with lower back pain or poor circulation?

The zero gravity preset on this base is designed to mimic the weightlessness experienced by astronauts. By elevating your head and knees slightly above your heart, it helps to decompress the spine and reduce pressure on the lower back. This posture also promotes improved circulation and can reduce swelling in the legs, making it a highly recommended setting for recovery after a long day on your feet.


What are the benefits of the dual massage and wave technology?

The dual massage system provides targeted relaxation for both the upper and lower body. The integrated wave technology goes beyond standard vibration by creating a rhythmic motion that helps to soothe sore muscles and increase blood flow. This feature is particularly effective for those with active lifestyles or those who experience evening restlessness, as it helps transition the body into a state of deep relaxation before sleep.


How does the technology integration enhance the nightly experience?

This base is built for the modern home, featuring both a wireless remote and mobile app compatibility for effortless adjustments. For safety and convenience in the dark, it includes a built-in flashlight on the remote and soft under-bed lighting. These thoughtful additions ensure you can navigate your room at night without needing to turn on bright overhead lights or disturb your partner.

75.50"w x 80.00"d x 6.00"h

4.3 out of 5 stars

Based on 28 ratings
5
79%
4
4%
3
4%
2
0%
1
14%
Daniel S
Verified Buyer

Purchased On May 29, 2026

Love it

Reviewed On Jun 25, 2026
Sarah S
Verified Buyer

Squeaky

Purchased On May 18, 2026

It's squeaks like crazy. My 20 year old set that I got rid of for this didn't make a noise. So far, not happy with this "upgrade."

Reviewed On Jun 25, 2026
Response from Staff
Hi Sarah! Sorry the base isn't working out for you so far. We'll see you soon for the service.
Morgane Hinde
Jun 25, 2026
Rhonda M
Verified Buyer

Purchased On May 11, 2026

Reviewed On Jun 17, 2026
Thomas/Darlene L
Verified Buyer

Purchased On May 25, 2026

The adjustable base is "fantastic, I love it". The men that installed it were "great" Another team came a few days later to make a adjustment, they also were "fantastic." We have purchased ALL of our furniture from Rooms to Go, and we have never been disappointed with the products and service. I also love the NO INTEREST FOR 36 MONTHS AS WELL.

Reviewed On Jun 15, 2026
Ward B
Verified Buyer

Purchased On May 18, 2026

Reviewed On Jun 6, 2026
Response from Staff
Hi Ward, we'd love to know more on the 3 stars review for your adjustable base!
Morgane Hinde
Jun 6, 2026