Try getting a tommee tippee beaker. I love mine, and will not throw it or the contents around, I just take it. I normally have milk and sugar in mine, as it is my favourite hypo stopper. With a lid on, there is no chance of it spilling.
Also, ask your partner if they can remember anything about what you do during the time when they are hypo. Ask if they remember anything about what they do?
When my hubyy and I discussed my night time hypo's, I told him I get really anxious when he tells me to drink, and then when he gets huffy if I don't.....now he gives me my drink and asks me to drink it, and he sits down next to me, and gently guides me. Previously I would fall out of bed and crawl along the bedroom floor, or hallway floor, and over the dogs lying down and back to the toilet still crawling...... Now, hubby will get my hypo fix, shakes it and hands it to me, and I take it. He will stay with me. When I try getting out of bed, he will assist me, as he knows that when I try to get to the toilet, I am starting to come round. When I have been to the loo, he helps me get back in to bed, and he knows I am ok.
I used to hate the way that he would try and control me (never hurting me or anything as, but that was what I felt at the time of my hypo's).
Your partner needs to try and adjust his dosage to avoid the hypo's at night, whether it is having less long acting insulin, or splitting it in to twice a day, but your partner should try to avoid them, and speak to DSN. On MDI, I had horrible night time hypo's, which were horrendous for 25 years, since being on a pump, I have had two night hypo's-both of which I woke up myself and treated myself. Don't know why night hypo's are different, and why I can treat them myself now, but it is very rare that I get them anyway since being on the pump.
Your partner really needs to adjust doses and speak to DSN, as hypo's aren't only bad for the diabetic person, they can also be horrendously bad for the person treating them-I do not envy you at all.