Are romantic sleeping positions actually realistic?

Are romantic sleeping positions actually realistic?
I don't know if it's just me and I'm not doing something right, but I've never really managed to pull off the romantic sleeping positions you see in movies and pictures like the above. Has anyone else had this issue?

For example, when lying with heads really close together (1, 2, 7, 8 above) how do you not wake up from the other persons constant breathing on your face, neck, chest etc, or their hair tickling you as it slides around? It always keeps me awake. Similarly with the lying while one person's body weight is on the others (1, 2 above and their variations); it feels so nice until I wake up with pains in the morning or my partner rolls over during the night and pinches something that wasn't meant to be pinched! In all honesty my partner and I find ourselves in the majority of the time is # 6 with sometimes facing in, sometimes not, or on our backs etc.

Do I just need to toughen up or buy cat or something? What advice would you have for me?
Are romantic sleeping positions actually realistic?
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