Could creatine be causing my insomnia

Creatine does not appear to be a direct cause of insomnia based on the expert discussions. However, it is noted by Ben Greenfield that increasing the dose of creatine when sleep deprived can have beneficial effects, suggesting it can help in combating the effects of sleep deprivation rather than causing it. He mentions using a slightly higher dose—from 5 grams to 6-8 grams under such conditions 1 .

Therefore, if you are experiencing insomnia, it's unlikely that creatine is the primary cause, at least from the discussed expert insights. Other factors might be influencing your sleep quality.

Creatine has been discussed for its potential benefits in improving sleep quality, particularly deep sleep. According to Cynthia Thurlow, creatine helps with sleep onset and enhances sleep architecture, promoting deeper sleep necessary for the glymphatic system to engage in waste and recycling processes within the brain, which are crucial for cognitive health 1.

This relationship between creatine's role in muscle and brain function can be linked to mitochondria, which are key in energy production. Improved mitochondrial function may account for better sleep by supporting overall cellular health and energy levels 1.