UKC

Maybe good if you are on a budget or need a bag that you do not mind trashing:

https://www.aldi.co.uk/crane-down-filled-sleeping-bag/p/081656189838300

I saw them a week or so ago and thought they were best for the target audience, who were anglers.  The bags were among a load of fishing kit.

If my safety rested on such a bag, then I'd choose a budget synthetic option.

They're pulling feathers off Cranes??!!

Saw them in the store. Not impressed; filling didn't compress and loft well.

Almost like there is a reason that good, ethical (well, as ethical as possible) down sleeping bags cost £150+. 

To the OP: whilst I haven't seen the bag in question, most of the outdoor/bike stuff Aldi/Lidl have that I've got fit badly and are made to a price point (i.e. cheap, so badly) with terrible longevity. Cheap, throw-away-shite for a single-use society. 

Edit: spelling

my first thought too, also, is it as warm as goose down?

They do state: "Filling Material: 85% Duck down, 15% Feather (not live plucked or from force fed birds)"

I got some Crane Merino Long Johns that have lasted 2500+ trail miles.

Granted, I only sleep in them but don't dismiss everything outright. 

I have used their stuff, not just dismissing. In my use I've found the 4-5 things I've got from them (including base layers) crap.

As with everything, you have to assess the quality of what's in front of you. If you can't do that, buy elsewhere, from a supplier you trust.

I've got cycling stuff from Aldi that has lasted years. But I checked the quality before I bought, and I regularly decide not to buy stuff, because a quick look tells me it's not quality. Like the down bag.

Exactly what I do - which is why I don't buy kit from Aldi, outdoor or bike.

Yep, I've got merino longjohns both from Aldi and Lidl and both pairs are lasting well - as good as some smartwool ones that cost 4 or 5 times the cost.

The first ones I bought from Aldi did split on a seam though first night or two out. The shop refunded me without question though.

I'm thinking that if it's only a 2 season bag, one's safety mightn't be so much at risk other than in having an uncomfortable night's sleep, and that the down could keep it's ability to insulate for longer than a synthetic bag would do.  If they're warm enough for the user, for car camping where bulk isn't as important they could be better value than a synthetic bag due to the life span of down being approx 30 years (from what I've read written by Rab Carrington and similar). I'd want to try one out somewhere closer to home before taking it away camping though. 

Then you are obviously not very good at accurately assessing the quality before you buy:

I've got dry bags that came from aldi  or lidl, can't remember which. A little heavier than some, but durable and a good size, have lasted years and years of use and abuse with no problems or leaking.  

Some of it is OK some of it is crap.   

From what I saw of the sleeping bag when I handled it, I'd say the product was on the second of your two options.