Changing one letter at a time to form new words, and leaving the other letters in their original position, can you convert the word SLEEP into the word DREAM? I was able to do it in six steps:

S L E E P
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
D R E A M

Here is one SOLUTION.

ONE SOLUTION:

SLEEP > BLEEP > BLEED > BREED > BREAD > DREAD > DREAM

Did you come up with a different solution? Please post it in the comments. Thanks!