Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 1 year ago

Yes, it is mentioned in many Hadeeths that sleeping between ASR and Maghrib is Makrouh (disliked) and cause many harms on health and well-being. It can cause mental problems and unhappiness. Hadeeth says: Who sleeps between ASR and Maghrib should not blame but himself when he finds disturbance in his mind. In Makarim al-Akhlaq page 333: Sleeping after ASR causes mental harm.

Nap during the day is good and called Qayloola قيلولة which is after Dhuhr till before Asr.