Since 2007 · San Diego
Cool-jams started in San Diego in 2007, for the oldest reason there is. Somebody could not sleep.
Hot flashes, most nights. Wake up soaked. Peel off a damp cotton nightshirt. Lie there in the dark waiting for the next one.
Then go looking for pajamas that could keep up, and find nothing worth buying. Cotton held the water against the skin. The synthetics felt like sleeping inside a windbreaker. Nothing on the shelf was built for the night you were actually having.
So we stopped shopping and started sourcing.
That is the whole origin story. No lab, no investors. One real problem, and enough textile knowledge to be dangerous.
The first pairs were made to solve one person's problem. They did not stay that way for long.
It turned out a lot of women were awake at 2am doing the same math: change the shirt, flip the pillow, try again. Cool-jams now goes out to customers in about 150 countries, and the reviews still read the same way they did in year one. Someone finally slept through.
Cooling sleepwear is easy to claim and hard to build.
The part most brands skip is that breathability is engineered into the construction, not just chosen off a fiber list. Knit, weight, tightness and finish decide whether a fabric moves sweat or sits in it.
That is where the years went.
In 2023 Cool-jams changed hands.
What followed was a quiet stretch. The range drifted, the fabric drifted with it, and long-time customers noticed before anyone inside did.
The original cooling fabric came back around the middle of 2025. That was the turn.
Sandra took over as brand owner in 2026, and she came to it as a customer would.
She sleeps hot. She has done the 2am shirt change, the pillow flip, the lying still in the dark hoping it passes.
So the brief she set is not really a marketing brief. It is a shopping list from someone this category has let down before. Moisture-wicking, because that is the entire point. Soft and cozy, because a performance fabric that feels like a windbreaker is not sleepwear. And beautiful, because there is no reason a woman who sleeps hot should have to dress like she is going to the gym at midnight.
“Moisture-wicking, soft and cozy, beautiful and functional. Not one at the expense of another.”
Sandra, brand owner
That last one is the part the industry keeps skipping. Functional and beautiful was never a trade.
The range today
Two questions
Start here
See itCool-jams is small. Smaller than the size of the catalog would suggest.
There is no parent company behind us and no floor of marketers. The whole team fits in one conversation, which is why the person answering your email tends to know what happened to your order.
