Hedgies are hardy pets. Just make sure that you feed it daily (I hope you know how much and what NOT to feed it).

Glad to hear that you're taking the proper steps to learn about taking care of a hedgehog.  

Any sort of cloth would be fine. However, make sure that there are no loose strings that a hedgehog could catch its' foot on. There have been cases where the string wraps around their limbs, cutting off circulation (which could lead to amputations).

A lot of hedgehog owners (overseas) use fleece. You can find it in Tesco or any other stores easily nowadays for about RM15 or less. You can reuse it so it's eco-friendly, I suppose. A lot cheaper than what I use these days (http://www.petloverscentre.com.my/highlights/2012/Jul/34.jpg) because I'm lazy. You can use wood shavings too, but you have to change it more often compared to this bedding. I tried other cheaper types of paper bedding too but they turned out very dusty (which is bad for the hedgies too).

1.) It's up to you, really. Doesn't make much of a difference as far as I can tell. I usually feed them in the morning.
2.) I've been feeding each of my hedgies one tablespoon a day since they were 3 months. Haha.
3.) Nah, they don't whine or make noise like other pets do. However, I found that my hedgies tend to run to their food bowl (and sometimes lie in it) when they hear me opening the can that keeps their food (I think they smell it).

Basically, feed 1 tbsp. every 24hrs.

Many say that the hedgies should have a place to hide, so it's better to give it a box or something. However, my hedgies don't have a place to hide, so I don't think it matters much. He's probably still adjusting to his environment. Or you just have a very temperamental hedgehog.

Out of my 5 hedgies, Huffster is the only temperamental one. Before he went blind in both eyes, he used to huff and puff at me all the time even though he knows it's me. Since he went blind in both eyes, he doesn't huff so much at me anymore after he smells my fingers because he knows it's me. I think his sight made him even more nervous before this.

I guess you can try the T-shirt method (wear an old T-shirt overnight, put it into its' cage for a few days) so he gets accustomed to your scent.

No, they don't respond. I know because I could be calling one hedgie's name, and all five of them would be waking up and staring at me.

well, how old isit? how long have u had it? has it been long since u approach it?

well since all the conditions did not fullfil for a "sudden change of diet/afraid" i think.. it might be that it is related to:-

1. pollution? (new construction project around housing area) the noise/vibration/dirty air
2. drinking too much water? (note that if drinking from a water bottle, it might be that the hog loves to chew on the bottle hence, excessive water consumed)
3. try feeding some (NOT MORE THAN 3) mealworms for it to gain some nutritions (NOT EVERYDAY PLEASE, just weekly). probably due to insufficient nutritions that it might be a sign that it is about to get sick
4. is the surrounding getting too cold? (weather change)
5. at least 10hours of lighting? too much darkness would lead to hibernation

if none of them happened. do update, or finally u should bring it to visit the vet, but i wouldnt as this COULD probably be solved with just a finger snap.

I tried giving little cuts of apple to my hedgehog, she dont seem to touch those thou ..

Btw, i understand we need to trip their nails rite? I doubt mine will sit back while i do so, any tips on how can I get to to maybe calm down or something?

they would usually just take their "old" usual food, so if for a sudden change of diet, it wouldnt take it for some time until it is hungry, which in other words "forced" to eat the food. another less torturous way is mix the new food with its old food for easier acceptance.

u could get hog wheels with pre installed "sand-paper-like" rollings which is inside the wheel already, when it runs, the friction will shorten its nails. if manually, yes it is a pain in the neck to cut it's nails

i guess uh, just let it drink lots of water? i dont think its poisonous to them

dunno if it's good or bad since i didn't find anything factual, but ppl said that it's bad. This says hogs kenot eat anything acidic while this says lime will kill the hog!? 

anyways i think better to put masam foods away from ur hog.

justmy2cents