sleeping

Q: It is said in the sunnah that it is better to fall asleep on the right side, and that it is disadvised to sleep on the stomach because in the Hadith, it is said:

عَنْ أَبِي هُرَيْرَةَ، قَالَ : رَأَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَجُلًا مُضْطَجِعًا عَلَى بَطْنِهِ فَقَالَ : إِنَّ هَذِهِ ضِجْعَةٌ لَا يُحِبُّهَا اللَّهُ

Similarly, we hear that it is not advisable to sleep on the left side. Now, if someone starts to lie on the right side. Then, involuntarily during his sleeping, he turns on the left side, or puts himself on the stomatch, will she have the totality of the rewards or not? 

Q: I'd like to enquire about females sleeping with their hair open. Is it permissible, if not why?

Q: If one's gums are bleeding a small amount (for example due to brushing their teeth before bed), can they sleep like that and rinse their mouth when they wake up?

Q: I am a woman with a very heavy menses, that comes with very painful cramps. Because it is very heavy, the blood tends to leak (onto my clothes, bed sheets, etc.). Is it permissible for me to sleep/lay down on my stomach as I have found that this position is the least likely to lead to a leak? I have also found it to help with the pain from the cramps?

Q: Is it a sunnah to drink milk before sleeping?

Q:

1. What is the ruling of face or head direction while sleeping?

2. Can we sleep facing east direction, head towards south and leg towards north. Our back is towards west(qibla), (we can sleep in this way only because of room size constraints).

Q:

1. Is it permissible for a toilet in ones residence to be constructed or located in a position where once seated on the toilet, the person will be facing the direction of qiblah?

2. Is there any wrong if ones bed is placed in a position which, when lying down the persons feet will be facing qiblah?