"tā gāoxìng de tiào qǐlái" distinguishing 得 vs 地
You won't hear any difference in spoken because both are pronounced the same de. 

In writing, 他高兴得跳起来 is correct.  他舒服地睡觉 and 他舒服得睡觉 are not idiomatic because they are  not a typical Chinese way but English.  We'd say 他睡得很舒服 in this case.