Serta Cobalt Calm Extra Firm Tight Top – No-Give Support
$10.99
Twelve inches tall, 850 coils in three zones, and almost no give in the top layers – the Cobalt Calm Extra Firm is the Perfect Sleeper for people who mean it about firm. Stomach sleepers stay flat with the spine level, and heavier sleepers get support that does not bottom out into the coil unit.
The anti-microbial cover keeps the surface fresh, and the build is adjustable-base friendly despite the firm tuning.
If you have been burning through soft beds that hammock inside a year, this is the opposite bet – come press on it as hard as you like at The Mattress Store inside our Northfield showroom. Absecon and Galloway are an easy loop away.
Questions & Answers
How firm is the Cobalt Calm Extra Firm?
The firmest tuning in the Cobalt Calm family – almost no surface give. You sleep on top of this mattress, not in it.
Is it good for heavier sleepers?
Yes – that is much of the point. The 850-coil zoned system and firm top layers resist bottoming out where softer builds compress through.
What sizes and prices does it come in?
Twin $899, Twin XL $949, Full $979, Queen $999, King $1,399, California King $999.
Does it work with an adjustable base?
Yes – the build is adjustable-base friendly despite the firm tuning. Ask our team to confirm your specific pairing.
Who should avoid it?
Dedicated side sleepers – extra firm gives very little at the shoulder and hip. The Cobalt Calm Medium or Plush builds fit side sleeping far better.
Frequently Asked Questions
Can I try this mattress before buying?
Yes. The Mattress Store inside our Northfield showroom carries floor models across our brands, and you can take the Dream Catcher pressure-mapping test, powered by X-SensorTech – about 7 minutes, 1,600+ sensors – to see which feel actually fits how you sleep.
Do you remove my old mattress?
Ask our team about haul-away when you schedule delivery – we can walk you through the options for your order.
Does this work with an adjustable base?
Most current mattresses we carry are adjustable-base compatible. If you’re pairing with a specific base, ask our team to confirm the combination before you order.
Do you offer financing?
Yes – financing is available through the Synchrony HOME card. Ask our team about current offers.
What if I find a lower price somewhere else?
Kensington offers a price match guarantee – bring us the price and we’ll take a look.
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California King ,Full ,King ,Queen ,Twin ,Twin XL |
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