Not everyone is affected the same way. Here's what makes the sleep impact bigger or smaller.

Factors That Make Sleep Worse

• High nicotine strength: 50mg/ml nic salts have a bigger effect than 3mg/ml freebase
• Frequent vaping: More puffs per day = more nicotine in your system
• Vaping close to bedtime: The later you vape, the worse the effect
• New vapers: Your body hasn't built up tolerance yet
• Sensitive to stimulants: Some people are just more affected by nicotine and caffeine
• Co-occurring conditions: Anxiety, depression, and stress worsen both vaping and sleep problems
• Other stimulants: Combining nicotine with caffeine, energy drinks, etc. multiplies the effect

Factors That Reduce the Impact

• Lower nicotine strength: Switching to lower-nicotine e-liquid reduces the stimulant effect
• Tolerance: Long-term vapers build some tolerance to the stimulant effects
• Earlier cutoff time: Stopping earlier in the evening gives nicotine time to clear
• Good sleep hygiene: Consistent schedule, dark room, no screens — all help compensate
• Regular exercise: Physical activity improves sleep quality overall
• Moderate use: Light vapers are less affected than heavy vapers