Do you have a memory foam mattress? It may make you hot.

Another trick is to take a hot shower before bed. Does that work?

https://www.sleepfoundation.org/sleep-faqs/why-do-i-get-so-h...

I think if he multitasks during said hot shower he might have an easy solution to try tonight. Also keep the thermostat/ambient temp like way down at night. If its freezing around him the body heat is actually an adaptive thing potentially

Im listening lol

You ever tried taking a bath before bed?

I don't have a bath, so can't test that theory.

But trust me when I say I have more-or-less tried everything as far as I'm aware. Cold showers. Hot showers. Magnesium etc.

2 other ideas:

1. Have you tried a weighted blanket? I bought one this summer as I don't have a/c but find it hard to fall asleep without the feeling of a big blanket covering me. I found this one[0] from Bearaby which is wonderful. It's weaved together so doesn't provide much/any warmth. Just a lot of soothing weight.

2. This article - "How to Fall Asleep in 2 Minutes or Less" - helped me fall asleep quickly: https://www.artofmanliness.com/health-fitness/health/fall-as....

[0]https://bearaby.com/products/tree-napper

I wonder if he's tried—erm, nature's original 2-minute falling-asleep method... Like, taken his fate into his own hands, so to speak

I have similar issues with sleeping hot. I bought a similar open-knit weighted blanket from yaasa this year and really like it.

Having a small fan blowing air over me also helps quite a bit (the Vornado 5303DC has a remote and can adjust in 1% increments which is very nice for adjusting temp a bit during the night).

He should fiddle with the thermostat first (low low low) but I agree with the fan thing, although its more of a white noise thing to me as opposed to the sensation of wind blowing (over) you

Sorry, is this an insomnia discussion or like a "I'm hot before bed" independant of how the sleep goes kinda deal?

I would advise against cold showers/baths/immersion as the will shock you into wakefullness and vigilance. Can't see how there's any evidence for that actually working. Its like saying "Ya, I turned my phone as bright and blue as it goes up to and I STILL couldn't sleep" :/

You probably already know this because it's absolutely the top cause of what you describe, but eating raises your core body temperature, and people who eat within an hour or so of going to bed frequently experience this symptom.

I have an eightsleep, which cools the bed down dramatically (circulates cold water). Makes a huge difference in my ability up sleep.