Congrats on your sprouts.

That happens sometimes, its less likely with some types seeds than others. The freshness of the seeds can make a difference too, very fresh seeds will sometimes not need the same temps to break dormancy as seed a little older. The last seeds that should have been warm/cold/cool germinators that sprouted while still indoors during the initial warm moist period for me was iris chrysographes. They were seeds I had collected from my own plants several weeks before.

I did the opposite of you, I quickly put them outside when I saw those first little points alerting me to germination beginning...I didn't want to care for them indoors under lights, harden them off before planting out. (Z8b here, I wasn't running the same risk as someone with a harsher winter climate)

You do understand those seedlings you've brought in will need to be gradually transitioned back to outdoors again, right?

Why are you moving them indoors? They sprouted outside so conditions must be right for them. Even if you aren't past your last frost date I'd leave them outside and just cover if a frost is forecast. They'll be hardier if left to deal with the elements from the very start.

Well, that is why I asked for comments - because I did not think of these things! I guess my main thought was to encourage those that had not yet sprouted, I probably will move them back out this afternoon, but with something else for a cover. The sun is now too intense for a Ziploc, it would bake the sprouts - yet I need something t protect them from both herbivores and hard rains.

Are you past your last frost yet? If so you can plant out once you have a second set of true leaves. No good answer for protection from herbivores and hard rains. You could slip the bags back on at night and on cool days, but that's an awful lot of work. I'm far north of you and a good month away from that problem. When it gets really warm here I'll flip the lids of the milk jugs open or take the tops off the 2L then put them back when the weather is cool or hostile. What about throwing an old sheet over the whole lot at night or when hard rains are expected -- would that be enough protection?

No, the average date of last frost is 4/10 and several years ago we had a killing frost 4/19. Right now I have everything on my front porch and can slip things in pretty easy. I have to keep it easy due to disability; better, I know, if I kept them in full sun but now they get some sun.

Lots of wintersowers prefer part sun/shade so they don't have to worry about a warm/hot spell baking the sprouts. Your porch probably protects from too much heat and frost so it sounds like a good spot for them.

Hope you feel better soon.

I have sprouts too but I am worried about that because its 15 degrees colder than normal for this time of year. Hope they don't all die.

I am also having temps up to 10 degrees colder than normal in NJ. So I've been waiting to sow. But decided to start.

If temps go too low, I will use row covers.