If you are looking for a truly undervalued/sleeping coin, you should take a look at Kryptohash (KHC)

It is a pure 100% PoW coin just like Bitcoin but, Kryptohash has features that makes it really unique.

It is the only cryptocoin to date that uses 320bit hashes.  

It has a new PoW algorithm called KSHAKE320 that prevents ASIC/FPGA rape that affects most of the PoW coins.  This algorithm was recently upgraded to version 2 to make it even harder for ASIC/FPGA vendors to enter this market.

It uses ed25519 for digital signatures and PID algorithm that keeps the network difficulty spot on

Also, if you look at KHC closely, you'd notice that satoshi-wise KHC is 1000 times less inflationary than BTC.  

  1 BTC = 100,000,000 satoshis
  1 KHC =       100,000 kryptoha-toshis