Sheraton website either has no webmaster or he/she is not doing his/her job. This is a good opportunity for you to apply. When I opened today 5th Feb 2016, here is the pop up from 2014 I saw

"Dear Esteemed Guests. Please note that the Sheraton Lagos hotel will be undergoing partial renovations from the 30th of July 2014. All hotel operations & business activities during this period remain as usual and guests shall be accommodated on the 1st to 4th floor of the hotel, while the 5th and 6th floor shall be out of service. The Management acknowledges and appreciates your loyal patronage over the years and would like to reassure you that an excellent level of service will be provided during this period. We do apologize for any inconvenience."

I saw that too