Isbn: 9787111720898 - 三型睡眠指南 ：理解睡眠类型，定制28天睡眠改变计划 (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2023-04 Pages: 184 Publisher: Mechanical Industry Press Some people are born night walkers. some are early risers. some are energetic after sleeping for five or six hours. and some can hardly support themselves after sleeping for one hour less. Everyone's sleep conditions vary greatly. and it is impossible for a sleep plan to solve everyone's problems. Therefore. understanding your sleep type is crucial for you to sleep well. In short. sleep type is a phy.…