How Does Temperature Affect My Sleep?
Experts agree the temperature of your sleeping area and how comfortable you feel
in it affect how well and how long you sleep. Why? "When you go to sleep, your set
point for body temperature -- the temperature your brain is trying to achieve --
goes down," says H. Craig Heller, PhD, professor of biology at Stanford University,
who wrote a chapter on temperature and sleep for a medical textbook. "Think of it
as the internal thermostat. If it's too cold or too hot, the body struggles to
achieve this set point."
A mild drop in body temperature induces sleep. Generally, Heller says, "If you are
in a cooler [rather than too-warm] room, it is easier for that to happen."
Ralph Downey III, PhD, chief of sleep medicine at Loma Linda University says,
“If the room becomes uncomfortably hot or cold, you are more likely to wake up”.
What is the Best Temperature for Sleeping?
Recommending a specific temperature is difficult because what is comfortable for one
person isn't for another. While a typical recommendation is to keep the room between
65° and 72°F, it is advised to set the temperature at what is most comfortable for you.
Experts from the American Academy of Sleep Medicine, advise people to think of a bedroom
as a cave: It should be cool, quiet, and dark. (Bats follow this logic and are champion
sleepers, getting in 16 hours a day.)
What are the Care Instructions for My Removable Mattress Cover?
The cover included with YuMe is unique in that it can be removed and replaced if
signs of “wear and tear” become apparent. The materials used in both the cover
and your mattress have been selected to minimize the occurrence of contaminants
such as mold, mildew and bacteria growth. Simply contact your nearest Mattress Firm
location for additional information on obtaining a replacement cover.
While it is not advised or covered directly by warranty, the cover can be laundered
in your household washing machine. Do not attempt to dry clean the mattress cover.
After removing the mattress cover and before placing it in a washing machine, take
care to re-zip the cover to avoid damage to the cover while being washed. Wash in
mild detergent and dry on low setting. Be sure the cover is completely dry before
reinstalling it on the mattress.
How Much Energy Does the YuMe use?
YūMē™ uses 220 watts of power at its highest level of function, which is the equivalent
of that used by two 110 watt nightstand lamps.
Does YūMē™ make any noise?
YūMē™ uses an innovative system of delivering conditioned air to the surface of the bed
for personalized comfort. Custom fans installed in the bed have been designed to maximize
air flow and minimize noise for optimum performance.
You may experience the white noise of the fans as you operate the heat/cool function
of the bed and adjust the settings. There is also a cooling fan in the main control
unit which will remain running while the bed is operating.
Location Environment: The level of sound experienced during the heat/cool operation
is directly related to the location environment. For example, when a bed is located
on a hardwood floor, the sound created by the fans may be amplified. To minimize
the overall sound level, place a piece of carpet or other sound absorbing material
directly under the bed to help reduce the noise level.
What is the Warranty/Return Policy of My Product?
Full One Year Warranty
YūMē™ is warranted against defects in the workmanship or materials for a period of
one (1) year. During this first year after the warranty, Mattress Firm will repair
or replace any defective part of YūMē™, and pay for all authorized labor associated
with the repair.
Two Year Limited Warranty
Electronic Components - Mattress Firm will replace any YūMē™ part found to be defective
during the second year of ownership. Purchaser shall pay all service fees associated
Mattress Cover – The customized removable mattress cover is warranted for a period
two (2) years against defects in the workmanship or materials.
Twenty Year Limited Warranty - Mattress
Excluding components associated with YūMē™, the mattress is covered by a 20-year, prorated warranty.
Mattress Firm is confident that you will be happy with the performance of your YūMē™. However, if after
sleeping on it for up to a 100 day period, you decide to return the bed, please contact Customer Service
before moving or disassembling your bed. Simply call the customer service desk within 100 days of the
initial delivery for reimbursement of the full purchase price, less the initial shipping fees. You will
be responsible for the cost of return shipping.
Additional Terms and Conditions
The warranty does not cover conditions arising from normal wear and tear of the bed; damage from tampering
with any component or opening the electronic enclosures, or misuse of the product in a manner inconsistent
with the operation and maintenance procedures outlined in the manual; repair or replacement of heat/cooled
bed parts by an unauthorized person; damage from dry cleaning; Acts of God, such as but not limited to
If I have a Problem or Question, Who Do I Call?
Contact your sales associate to be referred to a local product specialist in your area.
1-800-MATTFIRM is the service number applicable for answering any and all
questions concerning comfort, craftsmanship, and general inquiry for YūMē™.. You may also contact
your local Mattress Firm location to address these areas.
Who makes this product?
Gentherm Incorporated, the leader in micro-climate applications, and New Wind., a luxury mattress innovator with over 15 years of experience, have partnered with
Mattress Firm to offer the world's first Climate Control Sleep System.
With over 10 years of thermoelectric development and manufacturing experience under
their belt, and a highly successful Climate Control Seat system (prominently used
in luxury vehicles) already in the market place, it seemed only natural to try and
use their technology to help solve a very prevalent sleep issue- insomnia as a result
This endeavor resulted in the creation of Gentherm Incorporated, whose single
purpose was to bring a climate controlled sleep system to market. Gentherm Incorporated
partnered with Mattress Firm, one of North America's largest bedding retailers,
and New Wind., a bedding manufacturer with over 15 years of experience in producing innovative luxury bedding, to complete the project.