That vs THAN

Can someone help with this?

there is something i don't get, let me explain

you can say "I make more than you in 2 day than you do in 5 days" meaning you can say "In 2 days i make more than you do in 5 day"

"In 2 days I sleep more than half the amount THAT i sleep in 5 day during the week"

structure wise this must be correct and as you can see its a THAT and not a THAN

now if you turn it around "I sleep more than half the amount in 2 days ___ I do in 5 days"

now why wouldn't the missing word be THAT but THAN like you said, i'd go with THAT rather than THAN since in the above its THAT

last thing

1 I get about half as much sleep over the weekend as I do the other five days of the week put together (this could be said)

but could this be said

• I get a little more than half as much sleep over the weekend as I do the other five days of the week put together.

or

• I get a little more than 2 times as much sleep over the weekend as i do the other five days of the week put together.

one last thing, have you had a look at the 2 threads i was having trouble with

if you could it would be very helpful

thank you