Sleep

Sleep Hygiene 101: The Basics Before You Try Any Supplement

Before anyone spends a dollar on a sleep product, there are a handful of free changes worth trying first.

By Mary Smith · Updated this month · 5 min read

I wish someone had told me this order of operations years ago: sleep hygiene first, supplements second. Not because supplements can't help — some genuinely can — but because a lot of sleep problems respond to free changes just as well, and it's worth ruling those out before spending money.

Light exposure, in both directions

Getting bright light — ideally sunlight — within the first hour of waking helps anchor your circadian rhythm, which in turn affects how easily you fall asleep that night. On the other end, dimming lights and reducing screens in the hour or two before bed helps your body's natural melatonin production ramp up on schedule instead of being suppressed by blue light.

Temperature matters more than people think

Your core body temperature naturally drops as part of falling asleep, and a room that's too warm can work against that process. Research generally points to somewhere around 65-68°F (18-20°C) as the sweet spot for most people — cooler than most bedrooms are typically kept.

A consistent wake-up time — even on weekends — does more for sleep quality than most people expect, because it anchors your circadian rhythm in a way that a consistent bedtime alone doesn't.

Consistency beats intensity

Going to bed and waking up at roughly the same time every day — yes, including weekends — is one of the most consistently supported pieces of sleep advice there is. It's also one of the least followed, because "sleeping in" on weekends feels like a reward. The tradeoff is that it can shift your circadian rhythm enough to make weekday sleep harder, a pattern sometimes called "social jet lag."

The caffeine timing most people get wrong

Caffeine has a half-life of roughly 5-6 hours, meaning half of a 2pm coffee is still in your system at 7-8pm. For people sensitive to caffeine, that's enough to measurably affect sleep onset even without feeling "wired" — the effect can be subtle rather than obvious.

When it's time to consider more

If you've genuinely addressed light, temperature, consistency, and caffeine timing and sleep is still a struggle, that's a reasonable point to look into whether a supplement or a conversation with a doctor makes sense — not as a replacement for the basics, but as an addition once the free changes are already in place.