UltraCool Raglan Long Sleeve
Our UltraCool Raglan Long Sleeve is the perfect everyday essential with premium cut and three-quarter length sleeves. Made with ultra-soft fabric that has a slight stretch, this shirt features NASA-engineered temperature regulation technology to keep you comfortable all day long.
Please note that this tee runs small.
Ground shipping and returns are FREE for all US orders. Shipping typically takes 3-7 business days for most in-stock merchandise. Canada and express shipments are available for an additional fee at checkout.
60 Night Trial
For your peace of mind, all our products come with a 60 night satisfaction guarantee, as well as a 180 night warranty. If you don't love your new bedding, simply send it back for a full purchase price refund. No questions asked! FYI we do our very best to donate returns to charity.
Utilize Shop Pay Installments or PayPal Credit during checkout as flexible payment plans to split your purchase amount into equal and interest-free payments.
Ultra-soft with a slight stretch, our UltraCool Raglan Long Sleeve features NASA-engineered temperature regulation technology and premium cut with three quarter length sleeves for an easy, everyday essential.
Why we're different.
Slumber Cloud loungewear utilizes Outlast® technology for an unmatched approach to temperature regulation. Originally designed for NASA spacesuits, Outlast® technology is proactive, not reactive. As your body temperature increases during the day or activity, Outlast® technology stores that heat away from your skin to keep you cool, and then releases it back if you cool down...keeping you feeling “just right”.
Outlast® Matrix Infusion Coating is an advanced formulation of Outlast® Thermocules™ that's finely printed onto our loungewear fabrics. Outlast® MIC is ideal for loungewear products as it stays durable through multiple washes, has no impact on the fabric hand feel, and does not affect drape of the fabric.
Outlast® technology takes comfort to the next level by proactively alleviating spikes in skin temperature throughout the day. With Outlast® technology you will feel just right, no matter what the activity or season.
Laboratory tests show apparel treated with Outlast® technology helps reduce sweat by 30+%, compared to similar shirts made of modacrylic fiber. This is proactive reduction, not moisture wicking, and that results in greater comfort.
Most frequently asked questions.
How does the technology in the apparel work?
Outlast® technology is made of a unique material that can absorb, store and release excess heat. As an individual’s skin temperature increases, the technology will absorb that excess heat to help reduce overheating. The material will store the excess heat until the skin temperature begins to drop. When this occurs, the stored heat is released back to the individual to prevent chill. By managing the build-up of heat and moisture under the covers, Outlast® technology helps keep you at a comfortable temperature so you sleep “just right.”
How many degrees cooler will this keep me?
Slumber Cloud products are designed to help manage heat and humidity build up. It is not an air conditioner with a set temperature degree, but it will react to your temperature all night long to reduce heat build up and manage temperature swings.
What's the difference between Slumber Cloud apparel and other "cooling" apparel I might have tried?
Slumber Cloud takes a proactive approach to temperature control by absorbing and storing excess heat when temperatures are too warm and releasing heat when temperatures are too cold. This approach is different from most other "cooling" technologies/products on the market that are moisture-wicking (ex. Bamboo & Eucalyptus). Moisture-wicking is a reactive approach because it doesn't start to cool you down until you build up sweat and moisture and then wicks it off of you. Our products are designed to prevent you from ever getting to the point of sweating and building up moisture.
Is this machine washable?
Yes! Just like traditional apparel, Slumber Cloud products are designed to be washed and dried in your home washer and dryer. Please carefully follow the care instructions on the tag of your products.
Can I use an iron on my apparel?
The technology in our bedding is sensitive to high heats - instead of ironing we recommend using a wrinkle release spray such as Iron In a Bottle for that crisp and finished look.
How should I remove stains?
Please refrain from using harsh chemicals such as bleach and oxiclean on your apparel. Instead opt for more natural alternatives such as a small amount of dish soap, a warm water & vinegar solution, or specialty formulated laundry detergent such as Dropps
How do I wash my apparel?
To wash your apparel, please follow the washing instructions on the tags. If you have cut your tags after purchase, then it is recommended to wash with Slumber Cloud Free & Clear Laundry Detergent or a mild detergent in cold water on a delicate spin cycle. When it’s time to dry your apparel, please dry on low heat or air dry. Do not iron your apparel. To reduce wrinkling, take your apparel out of the dryer and immediately hang or use a wrinkle release spray such as Iron In a Bottle for that crisp and finished look.
Does Free Shipping Apply To International Orders?
Free shipping is only valid for US and Armed Forces delivery addresses. However, we do offer discounted shipping rates to Canada addresses.
Do you ship internationally?
Currently, we only ship internationally to Canada. At the time of purchase we include the cost of shipping, taxes, and duties for Canadian shipments. No additional fees will incur at delivery, but if they do please contact our customer service team at email@example.com to take care of the issue. For all other countries, if you find a forwarder or have a friend or family member here in the states, we would be more than happy to work with you to get it there.
Can I still return an item even if it's been washed?
We accept returns in any condition within 60 days of purchase! We want you to absolutely love your new bedding, so if you wash an item, try it out, and decide it's just not for you, we can definitely still initiate a return. Please note we do our very best to donate all returns to local charities instead of a landfill. We appreciate your help in this process by washing any used items before returning them to us.
Are shipping fees covered for returns?
All shipping fees for domestic returns are completely free! When you initiate a return through our returns platform, you will receive a prepaid shipping label to get the item back to us. If you live outside the US and are looking to initiate a return, please check out the return policy in the International FAQs.
How do I initiate a return?
If you're looking to initiate a return, just head over to our returns page! Please note that we are not able to process returns for items listed as Final Sale or past the 60 day return period.
What is your return policy?
Bedding: All bedding products, excluding “Final Sale” items, come with a 60-Day Satisfaction Guarantee. Sleep on it, wash it, and really test it out - If you are not fully satisfied with your new bedding you can return the item(s) within 60 days of your purchase date, no questions asked. A refund will be issued, within 7 business days of receiving the returned product.
Final Sale: Final Sale are not eligible for return, exchange, or the 60 night trial period.
Apparel & Home: Items in new and unopened condition are eligible for a return or exchange within 60 days of purchase. In the event of a return or exchange, our team will inspect the item and if determined it is new, a refund or exchange will be issued within 7 business days of receipt. If the item is in used condition, missing tags, or has been removed from the packaging, the return or exchange will be voided and the product donated to a local charity.
Are your products covered by a warranty?
Yes! All of our products are covered not only by the 60 night trial period but also a 180 day warranty which covers manufacturers defects (i.e. stitching, sizing). Please note in addition to damage caused by disregard of care instructions, temperature performance is not considered a manufacturers defect or covered by the product warranty.
Free Shipping & Returns
All U.S. orders are shipped right to your door, free of charge.
Try it For 60 Nights
Sleep on it, wash it, and really put it to the test for two whole months! If you don’t love your new bedding, just return it for a full refund. No questions asked!