hungry milk does NOT contain a thickener to stretch the stomach, what rubbish! It is more casein based than whey based (both are milk proteins) and casein is harder to digest and in theory is supposed to make them go longer between feeds. It does not contain more calories so if they go longer between feeds they may actually take in fewer calories in total.
mummybee there is no evidence whatsover that so-called stage 2 helps with sleeping - and your baby is so young, this is normal waking (actually less often than the average). Stage 2 formula is different, a bit, from regular infant formula because the protein content is less 'modified' so it takes longer for the baby's digestive system to metabolise it. It's not nutritionally superior or more calorie dense.
Chat with your HV about the options? Or call the manufacturers' helpline?
Waking up several times a night is normal for this age and it sounds as though 6oz is all he can manage. If he's going 4 hours between feeds at night then you're doing very well, so I'd stick to what you've been doing.
Need advice. Hungry formula , yes or no? LO is 7weeks. He slept 7+ hrs from 2weeks. Since going on to 6oz feeds. He sleeps every 4 even during the night. Is hungry formula milk a good option. What else can I try? He won't take anymore then 6oz.